Gas burner



June 23, 1925. v

c. MUNZNER GAS BURNER Filed Aug. 2. 1923 Patented June 23, 1925,

untreu srars rajijnr ori-uca.

CHARLES MUNZNER, F CHICAGO, ILLINOIS, ASSINOR TO AMERICAN STO'VE COM- PANY, OF ST. LOUIS, MISSOURI, A CORPRA'IION OF NEW JERSEY.

GAS BURNER.

Appucatim sied August 2, 1923. serial No. 655,229.

burn a yellow flame for the reason thatv thereis no pre-mixture of air with the gas before it reaches the burner.

The object of my invention .is to provide a gas burner which will produce an annular flame. Another object of my invention is to provide a gas burner which will produce an annular ame the size of which can be quickly and readily adjusted or varied.

A further object of my invention is to provide a gas burner wherein the flow of gas is readily and easily controlled in such a way that there is a marked improvement in the manner in which the flame holds on.

Another and further object of my invention is to provide a gas burner which is very simple of construction, cheap of manufacture and highly eliicient in operation.

Other and further objects and improved results of my invention will appear in the following description and accompanying drawings.

In the drawings .Figure 1 is a perspective View of my improved burner.

Figure 2 is a .vertical sectional view of the burner shown in Figure 1.

Referring now to the drawings in which like parts are designated by similar reference numerals throughout the description- One (l) designates a gas supply conduit which is in screw-'threaded engagement at 2 with a hollow cylindrical open-ended shell or housing 3 of niy burner.

The upper end of the housing 3 is provided with a smooth beveled edge 4 past which 'the' gas escapes to be burned. The amount of gas which escapes andthe size of th`e 'flame vis controlled by an adjusting plug 5 which is in screw-threaded engagement as at 6 with the walls of the opening` 7 of the shell.

The adjusting plug 5 is provided with a centrally located gas conduit 8 which terminates at its upper end with a series of radially disposed cross conduits or gasoutlets 9 through which the gas escapes into a distributing chamber 10 to pass ultimately past the beveled edge 4 before mentioned.

The plug 5 is provided with an enlarged head 11 having a tapered or beveled bottom or under-side 12. `Th-e bevel 12 of the plug is in approximately a parallel plane with the beveled edge 4 of the housing 8 but separated therefrom. The head 11 of the plug is further provided with a slot or groove 13 adapted to be engaged by a screwdriver or some similar tool.

From the foregoing description the operation of the burner should now be quite clear. The gas enters the housing 3 through the conduit 1, passing through the opening or chamber 7 upwardly through the adjusting plug main conduit 8 and thence outwardly through the cross conduits 9 into the distributing chamber 10. From the distributing chamber the gas passes upwardly and outwardly between the beveled edges of theu housing and adjusting plug to be burned'.

Due to the fact that the housing and plug are cylindrical the flame produced is an annular one and the size of the llame can be readily and easily adjusted by screwing the adjusting plug 5 upwardly for downwardly within the housing. The movement of the adjusting plug 5 controls the amount of gas which escapes to be burned rather than controlling the llame by choking it. The adjusting plug 5 is not a flame deflection 'but is rather in the nature of a` gas check.

As the plug is screwed upwardly and downwardly the opening between `the beveled faces 12 of the plug and the beveled edge 4 of the housing is reduced and the dame is therefore naturally diminished.

For the purpose of convenience the outer lower end of the housing 3 is provided with a series of square surfaces 14 to 'torni a nut so that the housing can be tightened upon the conduit by means of a wrench.

It will be readily understood that if it were desired the housing and plug could 'be made any shape other than cylindrical to meet various requirements and conditions without departing from the spirit of my invention.

Having thus described my invention what I desire to protect and secure by Letters Patent is A gas burner comprising a housing having an intermediate internal screw-threaded portion, its upper end beveled outwardly, an interior member havingq its lower end made hollow and provided with an intermediate reduced portion, its upper solid y end flared outwardly to correspond with the bevel of the outer extremity of the housing, laterally extending openings formed through the intermediate reduced portion and the enlarged lower end screw-threaded to it the intermediate screw-threads of the housing, whereby a chamber' is formed between the said intermediate reduced p0rtion and the housing, and the enlarged head is adjustable, for the purpose described.'

In testimony whereof I hereunto affix my signature.

CHARLES MUNZNER. 

